How to display a content in two-column layout in LaTeX?

I am writing an article in LaTeX and I would like to display some content in two column layout. In the left column a matrix and in the right column a list of items. I have tried with tabular environment but it does not work as I want.

My question is how to create a two column area in a LeTeX document (or something similar) and be able to put certain content to left and right column? I do not want to create a two-column layout for whole document, only for part of it.

Load the multicol package, like this \usepackage{multicol}. Then use:

\begin{multicols}{2}
Column 1
\columnbreak
Column 2
\end{multicols}

If you omit the \columnbreak, the columns will balance automatically.

Use two minipages.

\begin{minipage}[position]{width}
  text
 \end{minipage}